So I purchased a historic house built in 1920. The house has two HVAC units, one for the upper floor, one for the lower. Total sq ft 3300.
I had been setting the upstairs thermostat at about 83 degrees during the day lowering to 76 after sunset as it is not often used during daytime hours. I was told by my HVAC technician that this was a bad idea due to everything absorbing the heat.. carpeting walls furniture insulation etc.
I have to agree as the unit ran nonstop when attempting to get to a comfortable 76 degree sleeping temperature at night. The house has bedrooms on both floors and the downstairs is generally kept at around 78 during the day reduced for sleeping to 74.
I live in a hot and humid climate where overnight lows can be mid 80s with upwards of 80 percent humidity. Day time highs easily reach 98 to 100.
The downstairs area has a high ceiling . Can someone recommend a good temperature setting for both thermostats that will 1. Not have the AC running non stop 2. Not break the bank to maintain a comfortable temperature. I’ve read many conflicting articles on the temperature spread between the two floors and have come away more confused than ever.